Aura

BG-aura is a BG effect in Powder Game and Powder Game 2, simulating patterns of "auras" of specific elements. BG-aura is only activated if there is any change in air pressure. The pressure flow carries the auras of elements and objects present with it, having the same shade of it. After pressing stop, aura patterns still move for a while.

Uses

 * Used for simulating the visual effects of real fire.
 * Used for Aura Art.
 * Used to make a Torch Cannon.